I am having issues on Firefox 9.0.1 installing Selenium from the downloads page.

When clicking on a download link for Selenium IDE, I get the error: null could not be installed because Firefox cannot modify the needed file.When clicking on the Selenium Server or Slenium driver links, we got the error: C: could not be saved, because you cannot change the content of that folder. Change the folder properties and try again, or try saving in a different location.

Does anyone know how I can get around these 2 errors, or download from an alternative site? Please let me know your advice. Help is much appreciated. Thanks.